Dec. 14, 2017 5:48 PM PT6:48 PM MT7:48 PM CT8:48 PM ET1:48 GMT9:48 6:48 PM MST8:48 PM EST7:48 PM CT5:48 UAE (+1)20:48 ETNaN:� - Williams was strapped onto a backboard and taken off the field on a golf cart after suffering a head injury early in the second quarter Thursday against Denver. "He's back in the training room right now," Colts coach Chuk Pagano said. "He's got a concussion. We erred on the side of caution, and rightfully so, taking care of him, to get him taken care of on the field and get him to the hospital."Analysis: Williams was injured when Broncos linebacker Deiontrez Mount appeared to make helmet-to-helmet contact with him as Mount rushed a punt and knocked Williams over backward. He remained down for several minutes as he was lifted onto a backboard and had his facemask removed. Williams will now enter the concussion protocol and it's unclear when, or if, he might play again this season. Williams has 13 catches for 121 yards this season.